20944665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66491}}^1$

素因数の和:66509

約数の個数: 24

約数和(自身を含む): 41491008

約数和(自身を除く): 20546343

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66491, 199473, 332455, 465437, 598419, 997365, 1396311, 2327185, 2992095, 4188933, 6981555, 20944665]

約数ペア:

[(1, 20944665), (3, 6981555), (5, 4188933), (7, 2992095), (9, 2327185), (15, 1396311), (21, 997365), (35, 598419), (45, 465437), (63, 332455), (105, 199473), (315, 66491)]